toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() => '''
Lookup for helper library $path failed.
Please ensure that `dartjni` shared library is built.
Provided jni:setup script can be used to build the shared library.
If the library is already built, ensure that the JVM libraries can be
loaded from Dart.''';